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/* $XConsortium: mRegs.c /main/2 1996/10/27 11:49:43 kaleb $ */
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/chips/util/mRegs.c,v 1.4 2000/04/28 18:19:23 eich Exp $ */
#ifdef __NetBSD__
# include <sys/types.h>
# include <machine/pio.h>
# include <machine/sysarch.h>
#else
# ifdef SVR4
# include <sys/types.h>
# ifdef NCR
/* broken NCR <sys/sysi86.h> */
# define __STDC
# include <sys/sysi86.h>
# undef __STDC
# else
# include <sys/sysi86.h>
# endif
# ifdef SVR4
# if !defined(sun)
# include <sys/seg.h>
# endif
# endif
# include <sys/v86.h>
# if defined(sun)
# include <sys/psw.h>
# endif
# endif
# include "AsmMacros.h"
#endif /* NetBSD */
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef __NetBSD__
# define SET_IOPL() i386_iopl(3)
# define RESET_IOPL() i386_iopl(0)
#else
# ifdef SVR4
# ifndef SI86IOPL
# define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL)
# define RESET_IOPL() sysi86(SI86V86,V86SC_IOPL,0)
# else
# define SET_IOPL() sysi86(SI86IOPL,3)
# define RESET_IOPL() sysi86(SI86IOPL,0)
# endif
# else
# ifndef Lynx
# define SET_IOPL() iopl(3)
# define RESET_IOPL() iopl(0)
# else
# define SET_IOPL() 0
# define RESET_IOPL() 0
# endif
# endif
#endif
int hex2int(char* str);
int main(int argc, char** argv)
{
int i, value, index;
char c, cport;
char* str;
unsigned int port;
int query = 0;
if(argc < 2) {
printf("usage: %s Cvvxx [Cvvxx]\n",argv[0]);
printf(" where C = A|a write vv to ARxx\n");
printf(" = C|c write vv to CRxx\n");
printf(" = F|f write vv to FRxx (6555x only)\n");
printf(" = G|g write vv to GRxx\n");
printf(" = M|m write vv to MRxx (6555x only)\n");
printf(" = S|s write vv to SRxx\n");
printf(" = X|x write vv to XRxx\n");
printf(" xx is in hexadecimal\n");
printf(" vv is in hexadecimal or '?' for query\n");
}
if(SET_IOPL())
return -1;
for(i = 1; i < argc; i++){
value = 0;
str = argv[i];
c = *str++;
switch (c) {
case 'f':
case 'F':
cport = 'F';
port = 0x3D0;
break;
case 'c':
case 'C':
cport = 'C';
port = 0x3D4;
break;
case 'x':
case 'X':
cport = 'X';
port = 0x3D6;
break;
case 'g':
case 'G':
cport = 'G';
port = 0x3CE;
break;
case 'a':
case 'A':
cport = 'A';
port = 0x3C0;
break;
case 's':
case 'S':
cport = 'S';
port = 0x3C4;
break;
case 'm':
case 'M':
cport = 'M';
port = 0x3D2;
break;
default:
continue;
break;
}
index = inb(port);
while (c = *str++){
if (c == '?') {
query = 1;
}
if(c >= '0' && c <= '9')
value = (value << 4) | (c - '0'); /*ASCII assumed*/
else if(c >= 'A' && c < 'G')
value = (value << 4) | (c - 'A'+10); /*ASCII assumed*/
else if(c >= 'a' && c < 'g')
value = (value << 4) | (c - 'a'+10); /*ASCII assumed*/
}
outb(port,value&0xFF);
if (query) {
printf("%cR%X: 0x%X\n", cport, value & 0xFF,
inb(port+1)&0xFF);
} else {
printf("%cR%X: 0x%X -> 0x%X\n", cport, value & 0xFF,
inb(port+1)&0xFF, (value&0xFF00)>>8);
outw(port, value);
outb(port, index &0xFF);
}
}
RESET_IOPL();
return 0;
}
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